Bug 2320719 (CVE-2022-48967)

Summary: CVE-2022-48967 kernel: NFC: nci: Bounds check struct nfc_target arrays
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2024-10-21 21:04:50 UTC 
In the Linux kernel, the following vulnerability has been resolved:

NFC: nci: Bounds check struct nfc_target arrays

While running under CONFIG_FORTIFY_SOURCE=y, syzkaller reported:

  memcpy: detected field-spanning write (size 129) of single field "target->sensf_res" at net/nfc/nci/ntf.c:260 (size 18)

This appears to be a legitimate lack of bounds checking in
nci_add_new_protocol(). Add the missing checks.
Comment 1 Mauro Matteo Cascella 2024-10-22 10:41:11 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024102144-CVE-2022-48967-c2ae@gregkh/T